Open Interest Charts - this allows you to see where the action is and can if more puts or calls are being bought and where the action is happening. Since it is open interest that could me people willing to sale the rights to there shares but not always where the options are being bought but it pretty close. http://www.schaeffersresearch.com/streetools/indicators/open_interest_configuration.aspx?TICKER=SPY
Intraday Option Volume - this gives you a list of options with unusually high volume for the previous trading session compared with average daily volume.
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